Question 1

Is Super4PDF really free?

Accepted Answer

Yes! Our basic tools are 100% free to use for daily tasks (up to 100MB/day). For heavier usage, we offer affordable pro plans.

Question 2

Are my files safe with Super4PDF?

Accepted Answer

Absolutely. Super4PDF runs entirely in your browser. Unlike other online tools, your files are never uploaded to our servers. They stay on your device.

Question 3

Do I need to install anything to use Super4PDF?

Accepted Answer

No software installation required. Super4PDF works in any modern web browser on Windows, Mac, Linux, or mobile devices.

Question 4

Can I merge PDF files online for free?

Accepted Answer

Yes, Super4PDF lets you merge multiple PDF files into one document completely free. All processing happens in your browser — no file uploads needed.

Question 5

How do I compress a PDF without losing quality?

Accepted Answer

Use Super4PDF's Compress PDF tool. It reduces file size while preserving the original quality of your documents, all within your browser.